Launch control

The purpose of this feature is to allow you to hold your foot planted to the throttle while stationary and forcing an RPM delta (offset to real rev limit) that allows the car to hold a user desired rev limit and launch with as much less wheelspin as possible when releasing the clutch.

This patch is applicable only to a ROM image downloaded from a USDM Subaru Impreza WRX with calibration id A8DH200X. The patch will add the following features/enhancements (only one can be active at a time):